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American Journal of Physical Medicine & Rehabilitation:
doi: 10.1097/PHM.0b013e31828cd59d
CME Article . 2013 Series . Number 4

Influence of Dual-Task Constraints on Whole-Body Organization During Walking in Children Who Are Overweight and Obese

Hung, Ya-Ching EdD; Gill, Simone V. PhD; Meredith, Geneva S. BS

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Objective: The aim of this study was to examine the influence of dual-task constraints on movement and force control in children who are overweight and obese.

Design: Twelve children who are overweight and obese (4–12 yrs old) and 12 age-matched children with normal weight participated. The children walked along a path at a self-selected pace under two conditions: walking carrying nothing (baseline condition) and walking while carrying a box (dual-task condition).

Results: The overweight/obese group showed less normalized hand vertical motion and shoulder range of motion compared with the control group (all P’s < 0.05). However, in comparison with the baseline condition, the overweight/obese group decreased gait velocity and stride length and increased step width, lateral hand movement, lateral spine movement, and medial/lateral ground reaction force during the dual-task condition (all P’s < 0.05).

Conclusions: These findings indicate that children who are overweight and obese modify lateral movements and force organization when faced with dual-task constraints, which may influence their ability to maintain safety when dual tasking is required.

© 2013 by Lippincott Williams & Wilkins


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